AliEmad2002 / STM32_Oscilloscope

STM32f103 based digital oscilloscope. 1MSPS. Dual channel (Y-t) and (Y-X) modes
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Input impedance and noise rejection #4

Closed AliEmad2002 closed 1 year ago

AliEmad2002 commented 1 year ago

Use instrumentation amplifier to buffer the two terminals of the input. not only provides high input impedance, it also works as a subtractor that subtracts ground's noise from the signal. image image